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The problem with the Serial Line
Internet Protocol was that it was too simple and didn't include enough
features. As the saying goes, be careful what you wish for,
especially when the complaint is too much simplicity.
J The Point-to-Point
Protocol (PPP) corrects the lack of features in SLIP, but you could
figure out, without really trying, what the cost is: significantly more
complexity. Where the operation of SLIP can be explained in a few paragraphs,
PPP is much more involved, including a number of specific processes
that need to be explained.

Before discussing the individual
protocols that comprise PPP, I want to take a high-level look at the
protocol suite. I start with an overview, history and discussion of
the benefits of PPP. I provide a high-level breakdown of the main components
of the PPP suite, and a general description of how PPP operates. I then
describe the steps involved in setting up and configuring a link, and
the phases a PPP link passes through during its lifetime.
Finally, I categorize and list the standards that define different aspects
of PPP's functionality.

Note: I describe the operation of PPP before the standards that define it, which is different than the order used in most other sections in this Guide. I felt that in this case, the groupings used to list the standards would make more sense coming after the description of the PPP suite components and its overall operation.

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